This topic tree is composed of these topic strings.
这个主题树包含以下主题字符串。
A topic tree can contain any number of nodes, each of which are related to topic strings.
主题树可以包含任意数量的节点，每个节点都关联到一些主题字符串。
You must design the topic tree such that each copy of the message flow can serve a particular topic or portion of the tree.
您必须对主题树进行相应的设计，以使消息流的每个副本可以服务于一个特定的主题或树中特定的部分。
Remember that access to a topic object implicitly grants access to any topic strings at or below that topic in the topic tree.
还记得吗，一个TOPIC对象的访问权隐式授予对主题树中TOPIC所在位置以及该位置以下的所有主题字符串的访问权。
The topic object provides default Settings for the topic string that matches it, as well as topics under it in the topic tree that do not have a topic object defined to match them.
对于匹配TOPIC对象的主题字符串，以及主题树中该主题字符串之下、没有定义与之匹配的TOPIC对象的各个主题，此TOPIC对象为它们提供默认设置。
In order to efficiently resolve authorization requests on topic nodes for which no object definition exists, permissions are inherited down the topic tree from parent to child nodes.
为了有效解决不存在对象定义的主题节点上的授权请求，将沿着从父节点到子节点的主题树继承权限。
In order to efficiently resolve authorization requests on topic nodes for which no object definition exists, permissions are inherited down the topic tree from parent to child nodes.
为了有效解决不存在对象定义的主题节点上的授权请求，将沿着从父节点到子节点的主题树继承权限。
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